Campaigners for the frontrunners, Deputy President William Ruto and veteran politician Raila Odinga, are circulating dozens of posts claiming that their opponent is engaged in "vote rigging plots", said Benedict Manzin, a sub-Saharan Africa analyst at UK-based intelligence firm Sibylline.

According to the scientific consensus, in the last 6 million years, the size of the human brain increased roughly three times in parallel with the appearance of various new, increasingly complex activities, and then reached its maximum 10-15 thousand years ago, which is considered yesterday in the evolutionary time scale.

People who have taken on new African names talk about the mental emancipation it brings

The organ's size has actually held steady over the past 300,000 years, according to new research that reassessed data on brain evolution.

The contention the human brain shrank sharply around 3,000 years ago, coinciding with the establishment of cities, has captured popular and scientific imagination, but new evidence suggests it never happened.

The 12th century BC, when humans were forging great empires and developing new forms of written text, did not coincide with an evolutionary reduction in brain size.

Less than two years after shocking the science world with the discovery of a material capable of room-temperature superconductivity, a team of UNLV physicists has reproduced the feat at the lowest pressure ever recorded.

Did the 12th century B.C.E. -- a time when humans were forging great empires and developing new forms of written text -- coincide with an evolutionary reduction in brain size? Think again, says a UNLV-led team of researchers who refute a hypothesis that's growing increasingly popular among the science community.